Flood Modeller Tutorial Module02 Provisional: Difference between revisions
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=GIS and Model Inputs=
The steps
===Define Elevations (Building a TIN)===
We have provided the GIS layers necessary to modify the ground elevations to represent the proposed development. This part of the tutorial will demonstrate how a TIN is created from these GIS layers. We will also update the GIS defining the road crest level. Follow the instructions below for your preferred GIS format.
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* [[FM Tutorial M02_QGIS_GPKG_Define_Elevations | QGIS - GPKG]]
===Define Surface Roughness===
We have provided the GIS layers necessary to modify the land use areas that will change as part of the proposed development. This part of the tutorial will require populating the layer attributes to assign Manning’s n roughness values to each land use. Follow the instructions below for your preferred GIS format.
* [[FM Tutorial M02_QGIS_SHP_Define_Roughness | QGIS - SHP]]
* [[FM Tutorial M02_QGIS_GPKG_Define_Roughness | QGIS - GPKG]]
===Define Pipe Network===
This part of the module creates the GIS layers that make up the definition of the sub-surface pipe network. The inlets/pits of the pipe network will be linked to the 2D domain. We will also create the pit inlet database which links those GIS layers to depth-discharge curves. Follow the instructions below for your preferred GIS format.
* [[FM Tutorial M02_QGIS_SHP_Pipe_Network | QGIS - SHP]]
* [[FM Tutorial M02_QGIS_GPKG_Pipe_Network | QGIS - GPKG]]
===Define Boundary Conditions===
This part of the module demonstrates how an inflow can be applied directly to the pits of the pipe network. A GIS layer of the inflow boundary has been provided. We will also modify the existing Boundary Conditions Database to include these new inflows. Follow the instructions below for your preferred GIS format.
* [[FM Tutorial M02_QGIS_SHP_Boundary_Conditions | QGIS - SHP]]
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=Modify Simulation Control Files=
With the input GIS layers modified, the next step is to update the TUFLOW control files and Flood Modeller simulation files to create a linked model.
==TUFLOW Geometry Control File==
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Once the model has compiled and the simulation started, we can review the check files to ensure the changes have been correctly applied. The following section of this module outlines how the generated check files can be used to review each of the key changes we have made to the model. Note that there is often more than one check file that can be used to review each component of the model. The below steps outline just how some of these check files can be used.
From the <b>TUFLOW\check\2d\</b> folder open within QGIS:
*<b>FMT_M02_001_DEM_Z.TIF</b>
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The FMT_M02_001_DEM_Z.TIF is a grid of the final zpts used by TUFLOW after processing of each of the layers within the TGC. It can be read by most mainstream GIS software and also visualised in SMS.
From the <b>TUFLOW\check\2d\</b> folder open within QGIS:
*FMT_M02_001_grd_check
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*By right clicking on the grd_check layer within the table of contents and click Properties. Once the properties dialogue window is open select the Symbology tab. Choose the Unique values option under Categories in the left-hand list and map the Value Field of interest.
From the <b>TUFLOW\check\1d\</b> folder open within QGIS:
*FMT_M02_001_nwk_C_check
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'''Review Boundaries and 1D/2D Links'''
From the <b>TUFLOW\check\2d\</b> folder open within QGIS:
*FMT_M02_001_1d_to_2d_check
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'''Review Flood Modeller/ESTRY 1D/1D Links'''
The successful connection of the Flood Modeller and ESTRY networks can be checked by the presence of CHECK 1393
=Review the Results=
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